[1]MENG Fan-chao,WANG Yu-jie,ZHAO Zhan-jun,et al.Plant Biodiversity of the Damaged River Bank and Their Relationship with Soil Properties at the Beginning of Restoration in Taohua River of Chongqing City[J].Research of Soil and Water Conservation,2011,18(04):126-131.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
18
Number of periods:
2011 04
Page number:
126-131
Column:
Public date:
2011-08-20
- Title:
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Plant Biodiversity of the Damaged River Bank and Their Relationship with Soil Properties at the Beginning of Restoration in Taohua River of Chongqing City
- Author(s):
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MENG Fan-chao, WANG Yu-jie, ZHAO Zhan-jun, ZHAO Yang-yi, LEI Sheng-kun
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College of Soil and Water Conservation, Beijing Forestry University, Key Lab.Soil and Water Conservation and Desertification Combating, Ministry of Education, Beijing 100083, China
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- Keywords:
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Taohua river of Chongqing City; restoration model; species diversity; soil environmental effect
- CLC:
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X171.1;TV861
- DOI:
-
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- Abstract:
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Because of artificial interference, the plant of river bank in Taohua has been damaged. After eco-restoration of the river bank, plant recovered rather well. Based on the survey on community in the plots, we studied the plant species diversity, soil properties and their relationship at the beginning of restoration with one way ANOVA analysis, correlation analysis and multiple regression methods. Twelve soil indicators were selected to describe soil physical properties and nutrient characteristics, including soil bulk density, capillary pore, non-capillary pore, active acid (pH), organic matter, total N, total P, total K, available N, available P, available K and soil cation exchange capacity (CEC). The results showed that the species diversity of the plant slope protection and natural materials fabric pad which is little better than geotextile flat bag was the highest. The species diversity has been greatly improved compared with bared river bank. In all of the river bank models, the difference of the most soil chemical and physical characters, which of the bared river bank have the best soil fertility condition, is extremely obvious. Through correlation analysis and multiple regression methods between invasive plants on soil biodiversity and soil chemical and physical characters, the indices of invasive plants on soil biodiversity are negative correlation to soil bulk density. In all of indices, Margalef index and Simpson index are obvious positive relation to capillary pore, available N and CEC as well as extremely obvious positive relation to organic matter. Shannon-Wiener index and Pielou index are extremely obvious positive relation to capillary pore as well as obvious positive relation to organic matter. In all soil chemical and physical characters, total K, organic matter, CEC had the closest relationship with species diversity.